On the July 2007 flare of the blazar 3C 454.3
arXiv:0708.0617 · doi:10.1111/j.1745-3933.2007.00397.x
Abstract
In July 2007, the blazar 3C 454.3 underwent a flare in the optical, reaching R~13 on July 19. Then the optical flux decreased by one magnitude, being R~14 when the source was detected by the gamma-ray satellite AGILE, that observed the source on July 24-30. At the same time, the Swift satellite performed a series of snapshots. We can construct the simultaneous spectral energy distribution using optical, UV, X-ray and gamma-ray data. These shows that an increased gamma-ray flux is accompanied by a weaker optical/X-ray flux with respect to the flare observed in the Spring 2005 by INTEGRAL and Swift. This confirms earlier suggestions about the behaviour of the jet of 3C 454.3.
5 pages, 3 figures, MNRAS (Letters) in press (minor revision)
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Cited by in corpus (15)
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- A new activity phase of the blazar 3C 454.3. Multifrequency observations by the WEBT and XMM-Newton in 2007-2008
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- NuSTAR perspective on high-redshift MeV blazars
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- INTEGRAL view of AGN
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- The changing look of PKS 2149-306
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- An original constraint on the Hubble constant: h>0.74
- Bulk Comptonization: new hints from the luminous blazar 4C+25.05
- Patterns of variability in gamma-ray blazars
- Multiband Optical Variability of the Blazar 3C 454.3 on Diverse Timescales
- Breaks in the X-ray spectra of high redshift blazars and the intervening medium
- Emission and power of blazar jets